For all your Mass Effect 3 needs - provided you have any remaining - BioWare has announced a new piece of DLC for the game, Mass Effect 3: Citadel. Eurogamer reports:

BioWare has announced Mass Effect 3: Citadel, the final single-player expansion for the game, and the final multiplayer expansion, Reckoning.

Citadel will be released on 5th March for PC, PlayStation 3 and Xbox 360, priced $14.99 or 1200 Microsoft Points.

[...] BioWare describes Citadel as "an emotional ride" featuring fan-favourite characters from the series. It will be "one final, sentimental journey with Commander Shepard and their squad".

"When a sinister conspiracy targets Commander Shepard, you and your team must uncover the truth, through battles and intrigue that range from the glamour of the Citadel's Wards to the top-secret Council Archives," BioWare community manager Chris Priestly revealed on the company's official forum. "Uncover the truth and fight alongside your squad - as well as the cast from the original Mass Effect and Mass Effect 2."

Citadel will include a new hub area to explore even after the DLC's main plotline has been completed - a major complaint about previous add-on, Omega.

"When the adventure is over, reconnect with your favourite characters from the Mass Effect Trilogy, try your luck at the Citadel's Silver Coast Casino, blow off steam in the Armax Combat Arena, or explore and furnish Shepard's own living quarters on the Citadel. With unique content and cinematics featuring your friends and romance interests in the Mass Effect trilogy, Mass Effect 3: Citadel offers one final chance to see the characters you have known for years and rekindle romances."

New scenes with Mass Effect 3 squadmates Liara, James, Garrus and Kaidan have been teased in new screenshots, as well as the return of previous squadmates Wrex and Miranda.

Citadel is so big, Xbox 360 players will have to download the game in two chunks. You'll pay the full 1200 Microsoft Points for "Part 1", then be able to download "Part 2" separately for free. The reason for this is that Citadel weighs in at almost 4GB, nearly double Microsoft's 2GB DLC file-size limit.

[...] BioWare previously said it was "all hands on deck" for Citadel, with all of the game's main writing staff and composer Sam Hulick returning - Hulick and others had not contributed to previous DLC chapters Leviathan and Omega.

Actor Seth Green also returned to provide voice-work, the only time he has recorded new lines for a Mass Effect 3 add-on.​